Legacy Documentation: Version 5.2
LanguageEnglish
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

MonoBehaviour.OnCollisionEnter2D(Collision2D)

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Sumbission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual

Description

Sent when an incoming collider makes contact with this object's collider (2D physics only).

Further information about the collision is reported in the Collision2D parameter passed during the call. If you don't need this information then you can declare OnCollisionEnter2D without the parameter.

Notes: Collision events will be sent to disabled MonoBehaviours, to allow enabling Behaviours in response to collisions.

See Also: Collision2D class, OnCollisionExit2D, OnCollisionStay2D.

function OnCollisionEnter2D(coll: Collision2D) {
	if (coll.gameObject.tag == "Enemy")
		coll.gameObject.SendMessage("ApplyDamage", 10);
}
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void OnCollisionEnter2D(Collision2D coll) { if (coll.gameObject.tag == "Enemy") coll.gameObject.SendMessage("ApplyDamage", 10); } }